The h file is round in cross section. H file has strong cutting force and high efficiency, but it is easy to damage the root canal wall.
Highly efficient enlargement of root canals in filling motion
There are Stainless steel and nickel titanium two material can be chosen.
The difference between stainless steel and nickel-titanium files:
Stainless steel files are not elastic, while nickel-titanium files are flexible and are more suitable for curved root canals .
Stainless steel files have more cutting force, but less breaking resistance. Compared with the NITI files is easy to break, and NITI files is not easy to break, which is safer. However, the cutting force of nickel-titanium files is weaker and less efficient than stainless steel files.
The size of H file is similar as K file, the minimum size of stainless steel H file is #06.The NITI files of #6 is too thin and soft, it is easy to break, and the efficiency is not high, So we didn’t produce.
Our hand use NITI files handles have the word “NITi” printed on them.
